Underground day 6, last day.The cavenauts pack their bags and tents and start the six-hour climb back to Earth's surface. So ends the CAVES 2012. All that remains for the astronauts is to write their mission reports.An international crew of six astronauts trained on a caving adventure designed to prepare them for spaceflight. There are many similarities to spaceflight such as a lack of day--night cycle, sensory deprivation, minimal hygiene and the necessity to work as a team and solve problems together.After a week of training they entered the caves to spend six days living and working underground.Copyrights: ESA????--V. Crobu & S. Sechi
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